government vehicle in mexico city. were corrupt mexican police officers purposely targeting american officials? all of that and breaking news the second hour of "happening now" starts right now. >> reporter: one race, two candidates, three debates and the night everyone has been waiting for. i'm gregg jarrett in for jon scott. jenna: the night is finally here. i'm jenna leave. welcome to the second hour of "happening now." now is certainly a big night. the president and governor romney face-to-face for the first time on stage with an estimated 60 million americans watching, just about the same amount that is watching us right now. >> reporter: a little shy of that. jenna: a little shy of that. most voters have already made up their minds. the candidates are out to win over a shrinking number of undecideds. the key for president obama to sit out his narrow lead without a mishap while governor romney apparently needs to shakeup the rape. we'll see what our fox news political analyst brit hume thinks about that. what are